Revenues (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Disaggregation Of Revenue [Line Items]
Revenue, practical expedient, financing component					true
Revenue recognized to performance obligations satisfied in prior reporting periods	$ 2,000,000.0
Revenues	10,899,820	$ 3,517,561			$ 25,670,624	$ 18,329,017
Natural Gas, Oil and NGL [Member]
Disaggregation Of Revenue [Line Items]
Revenues	$ 10,899,820	$ 3,517,561			25,670,624	18,329,017
Natural Gas, Oil and NGL [Member] | New Wells on PHX Acreage [Member]
Disaggregation Of Revenue [Line Items]
Revenues			$ 293,154	$ 95,221	$ 365,871	$ 259,336	$ 72,717	$ 164,115
Minimum [Member]
Disaggregation Of Revenue [Line Items]
New wells production statements period					30 days
Maximum [Member]
Disaggregation Of Revenue [Line Items]
New wells production statements period					90 days